Acciarri, M. ; Achard, P. ; Adriani, O. ; Gurtu, A. ; et., al (2001) Measurements of the cross sections for open charm and beauty production in γγ collisions at √s = 189-202 GeV Physics Letters B, 503 (1-2). pp. 10-20. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0370-2693(01)00134-4
Abstract
The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb−1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ(e+e−→e+e− cc̅X) and σ(e+e−→e+e− bb̅X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83420 |
| Deposited On: | 21 Feb 2012 07:35 |
| Last Modified: | 21 Feb 2012 07:35 |
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